erc20-snapshot
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Creates a snapshot of any ERC20 token in JSON or CSV format
Token Snapshot: Create ERC20 Token Snapshot
This command-line utility creates a snapshot of any ERC20 token in JSON or CSV format. Use your own fully synced Ethereum node or any Ethereum node as a service like Infura.
- Works without a local Ethereum node.
- Automatically resumes the next time upon failure.
- Tested to work with Infura.
Getting Started
npm install erc20-snapshot -g
CLI Arguments
None. Prompts for user input and produces a configuration file on the first run.
How to Use Token Snapshot?
Navigate to a directory where you'd like to save the token snapshot to.
cd path/to/a/directory
Run the program:
erc20-snapshot
Configuration File / Prompt Parameters
{
"provider": "https://mainnet.infura.io/v3/<key>",
"contractAddress": "",
"fromBlock": 0,
"toBlock": "latest",
"format": "json",
"blocksPerBatch": 2500,
"delay": 0,
"checkIfContract": "yes"
}
provider
Enter your fully synced Ethereum node. Could be a local node or remote services like Infura.
contractAddress
Address of your ERC20 token.
fromBlock
The block height to scan from. To save time, enter the block number of the transaction your token was created on.
toBlock
The block height to end the scan at.
blocksPerBatch
The number of blocks to query per batch.
If you are using remote service like Infura, keep this number relative low (2000-5000) to avoid rate limits. If you are using a dedicated Ethereum node, you can increase this number to suit your needs.
delay
The delay (in ms) between each request in the loop. Tweak this if you are experiencing rate limit from your provider.
checkIfContract
Checks each address to determine whether it is a smart contract or an Ethereum wallet.
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